So I phoned home from work last night to speak to my wife and found out her best friends dad has gone missing in the Cairngorms whilst out walking. He's 62 didn't tell anyone exactly where he was going and has been missing since Tuesday. Family is in bits as you would expect. Now the missus is freaking and saying that could easily be me when I head out on my bike sometimes although I do normally always tell her where I'm going anyway. I've told her about the new Garmin Edge 810 which has the function of allowing your other half to see where you are. Has anyone bought one of these and how good is it? Also are there any shops doing deals on them as they seem bloody expensive. I also just bought the 800 a month or so before the 810 came out, will my map card plug in exactly the same and is my heart rate monitor going to work with the new unit?